489453-45-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 489453-45-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,9,4,5 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 489453-45:
(8*4)+(7*8)+(6*9)+(5*4)+(4*5)+(3*3)+(2*4)+(1*5)=204
204 % 10 = 4
So 489453-45-4 is a valid CAS Registry Number.